Auxiliary valve for internal-combustion engines.



H. F. KEIFFER.

AUXILIARY VALVE FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED 00119, I914.

1,168,309, Patented Jan. 18, 1916.

If IQRZIIIIIIILQ/W cairn srarns rarer-tr HARRY F. KEIIFEPI, OE FER YSBUBG, OHIO.

AUXILIARY VALVE FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters letent.

Patented Jan. 318, 1916.

Application filed October 19, 1914. Serial No. 867,382.

nal-Combustion Engines; and I do hereby declare the following to be a full, clear, and exact description :of the invention, such as will enable others skilled in the artto which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

My invention relates to valves for supplyingair to internal combustion engines in addition to that which is supplied through the carbureter.

The operation of the valve is automatic in its character in that the amount of air which is furnished to the engine when running at full speed, is reduced when the engine is operating at a lower speed.

In the embodiment of my invention, a spring controlled valve member is operated by the diiference in the pressures of the atmosphere on one side of the valve member and that of the mixture of vapor and air produced by the carbureter on the other.

By the use of my invention, the consumption of the fuel, such as, the gasolene, is greatly reduced, for, as the engine becomes heated and the speed of the engine increases,

a better mixture of air and gasolene will be made for operating the engine under high speed. Also, in my invention, a means is provided for using the warm air which is heated by some part of the engine. The air is preferably taken from in the vicinity of the exhaust pipe. A means is provided which will draw the air from some part of the engine and yet which may be turned away so as to draw the air from a point remote from the engine. The warm air assists in the vaporization of the gasolene particularly in cool Weather. On the other hand, in warm weather the device may be altered so as to draw the air from a point remote from the engine to prevent overheating of the engine.

' The invention may be contained in many constructions, all of which come within the purview of my claims hereinafter appended. To show the practicability of constructions embodying my invention, it have, Selected extend. vertically.

of such constructions as an example and shall describe it hereinafter. The construction selected is illustrated in the accompanying drawing.

Figure 1 of the drawings illustrates an embodiment of my invention as applied to the intake pipe of an engine. Fig. 2 illustrates a longitudinal sectional view of the device shown in Fig. 1. Fig. 3 illustrates a top view of the valve containing part.-

1, Fig. 1, illustrates the engine to which the device is applied. 2 is the intake pipe leading from the carburetor 3 to the engine 1.. In multi-cylinder engines, the intake pipe 2 forms the manifold of the engine. The device 4: is secured to the engine. It is preferably secured to the intake pipe 2. 5 is the exhaust from the vicinity of which the air, which is drawn through the device l, may be taken.

The device 4 is provided with a flanged connector 10 having openings through which screws 11 may be inserted to secure the device to the intake pipe 2. The flange connector 10 is provided with a hole 12 in which the body 13 of the device may be threaded which secures the device 4t to the pipe 2. The casing 13 is provided with an opening 14L which registers with an opening in the intake pipe 2. -The passageway i l is controlled by a cook 15 which may be turned to reduce or close the passageway through the body of the casing. 'A. screw 16 may be used for holding the cook 15 in position. The body of the device i may be located horizontally while the cook 15 which is located at right angles to the axis of the device 4 may The cook 15 may be provided with a passageway 20 and a cup 21 which communicate with the interior of the intake pipe 2 through the passageway 14.. If it is desired, the cup may be used for priming the engine. The passageway 20 is controlled by a second cook 22 having a handle 28 whichis secured in position by the threaded pin 24 and nut 25. The handle 23 is not only useful in closing the cook 22, but it also is used in operating the cook 15.

The casing 13, at its outer end, is recessed by a counter bore. The recess is threaded and receives a valve casing 52 which has a portion forming a cylinder extending into the body 13. The valve casing 25 is also recessed and contains the puppet r. 2?

' cone which seats upon the edge of a counter bore 26in the casing 25. The cone .end permits an extended horizontal movement of the movable valve member and yet guides the valve memberto its seat, notwithstanding such extended movement. The

-1novable valve member is providedfwith a i stem 29 which freely moves in a cross bar 30. The cross bar 30 i'sthreaded into the recess 31 in which the movable valve mem: ber 27 is located. A; spring 32 is located intermediate the valve member 26 and the cross bar 30. The threaded cross bar forms a convenient means for guiding stem 29 and "body 13 by any suitable means to prevent rotation of the casing 25 relative to the body 13 which might be caused by the jarring of the engine while in operation. I have shown a screw which-may be threaded into the abutting'shoulders of the two casings so as -to prevent rotation of one relative to the other.

also be provided "with a guiding plate 33 threaded cylinder located within the casing,

The movable valve member 26 may having right angularly turned fingers 34 located in the vicinity of the interior surface of the wall of the recess 31 which also aids in keeping the Y valve member centrally located.-

The end of the casing 25 is provided with an inlet 39, It is preferably connected to atube 10 which is threaded into the casing 25 and communicates with the counter bore 26. The tube 4.0 is preferably angular having the angular portion 41 so positioned that it may be brought into "contact with, or into i .the vicinity of some heated part of the enginewhen. it is desired to draw heated air into the engine to cause it to mix with the mixture arising from the carbureter. \A plurality ofthreaded semi-circular holes 45 'may be formed in one of the abutting shoulders of'the easing such as the shoulder 46 to .form a plurality of locking points.

They provide vertical and circular adjustments of the location of the tube 40 and the parts may be-locked in any 1 one of the positions by means of the screw 35. The tube 40 may be turned inthe casing 25 so as to provide a transverse adjustment of the outer end of I the tube 40. By this means the tube &0 may be adjustably located in .such a'position that itsend will be in proximity to some heated portion of the engine. When the engme 1s operated under conditions, such as in the summer time or under condition which will be apt to cause overheating of the engine,

-' the tube 40 may be turned in the casing 25 so as to draw air from a point which is away:

firom the engine and which is not heated y 1t.

When it is desired to prime the engine by using the priming cup 2 1, the cook 22 is opened and when suction 1s produced by thedown stroke of the piston of the engine, the

priming gasolene will be vaporized by the air which passes in through the tube 10 and through the valve 26 into the passageway 14. The pasageways 20 and 1%, being at right angles toeach other, aid in the dissemina-y ture of the tube which will assist in the starting of the automobile engine.

The construction selected and described may be greatly varied in the arrangement and connections of its parts and in the substitution of elements having equivalent functions, and, such modifications, may be used for widely dilferent purposes and may still contain] the invention.

Having thus described my invention, what I claim as new anddesire to secure by Letters Patent, is, 1. The combination of a valve casing, a

a cross bar having threads extending across the ends and threaded in the cylinder, a cone valve member having radially extendin gers and seated on the end of the cylin er, a

stem secured to the movable valve member 7 and freely movable through the cross bar, a

spring located on'the rod and intermediate the valve member and the bar, and means for adjustably varying the pressure of the spring. p

"2. The combination of a manifold and a carburetor, an auxiliary valve connected to the manifold and comprising a valve casing having a stop cock at one end and a valve casing having a movable bent intake tube for taking air more or less remote from heatedpads of the engine at the other end,

across bar located in the valve casing and having its ends threaded to engage with the threaded walls of the cylindezgfa movable valve member having radially extending fingers, the outer ends of which are bent at right angles and longitudinally to the easing, the "movable valve member seated on. theend of the cylinder communicating with the tube, a rod connected tothe movable-valve -member and 'movable in the cross b81324. .spring located intermediate the cross bar and'the valve member. v

In combination with a carburet'er of an internal combustion engine, a valve casing having a passageway extending therethrough, a valve member for controlling the passageway, a stop cock located intermediate the valve member and the engine also for controlling the passageway, the cock having a priming cup and a passageway communicating with the passageway of the casing and 'a stop cock located in the firstnamed stop cock 'for controlling the second passageway. v

4. In combination with the carbureter of an internal combustion engine, a casing having a passageway communicating with the engine, a stop cock for controlling the passageway, the stop cock having a cup and a passageway connecting the cup with the first-named passageway, a stop cockfor controlling the second passageway in the firstnamed cock. p l

5 In combination with the carbureter, a

' valve casing having a passagewav' therethrough and communicating with the engine, an adjustable tube communicating with the passageway of the casing, a valve member having a cone for guiding the valve member to its seat, a stem secured to the valve member, a' cross bar having threaded ends and an opening through which the stem is movable, a spring located intermediate the cross bar and the movable valve member, a cock also for controlling the passageway and having a priming cup and a controlling cock.

' '6. In combination with the carbureter. of

an internal combustion engine, a casing having a passageway communicating with the engine, a spring-pressed valve member for controlling the passageway and a movable bent tube communicating with the passageway for receiving air in the vicinity of or remote from a heated portion of the internal combustion engine.

7. In combination with the carbureter of an internal combustion engine, a casing having a passageway communicating with the engine, a spring-pressed valve member for controlling the passageway, a casing for containing the said spring valve member'and threaded into the first-named casing; means for locking the second-named casing at 'different points about the axes of the two casings and a movable bent tube secured in the secondnamed casing and communicating with the passageway for receiving air in the vicinity of or remote from heated portions of the internal combustion engine.

In testimony whereof, I have hereunto signed my name to this specification in the presence of two subscribing witnesses.

[ HARRY F. KEIFFER.

Witnesses:

' E. :E. THOMAS,

F. E. AUL. 

